Tag: properties of stars

Questions Related to properties of stars

The diameter of Sun is _________times larger than diameter of largest planet Jupiter.

physics movement of the earth properties of stars life cycle of stars solar system and its planets types of galaxies galaxies

  1. 10

  2. 12

  3. 20

  4. 15

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Correct Option: A
Explanation:

The diameter of the Sun is 1.3914 million km, it is 109 times larger than the diameter of the Earth and 10 times larger than Jupiter.

What are known as Sun Spots?

physics movement of the earth properties of stars life cycle of stars solar system and its planets types of galaxies galaxies

  1. Cooler regions on photosphere

  2. Hotter regions on photosphere

  3. Cooler regions on stratosphere

  4. Hotter regions on stratosphere

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Correct Option: A
Explanation:

Spots formed on the surface of the Sun that are darker and cooler are called the Sun's spots.

They may differ in size from small to large also.

Sun has so much mass because of this it produces its own light. Is this statement true or False

physics movement of the earth properties of stars life cycle of stars solar system and its planets types of galaxies galaxies

  1. True

  2. False

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Correct Option: B
Explanation:

This statement is false the Sun generates its own light due to Nuclear Fission not due to its large mass.

What is the Sun made of?

physics movement of the earth properties of stars life cycle of stars solar system and its planets types of galaxies galaxies

  1. 94% hydrogen, 6% helium, 0.16% other materials

  2. 94% hydrogen, 6% helium, 0.13% other materials

  3. 99% hydrogen, 6% helium, 0.11% other materials

  4. 94% hydrogen, 6% helium, 0.11% other materials

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Correct Option: B
Explanation:

Sun is a large mass of gases. Two prominent gases forming the Sun are hydrogen and helium. Other gases such as carbon, nitrogen forms the trace amount.

The sun is made of 94% hydrogen, 6% helium, 0.16% other materials.


What is the diameter determined of sun?

physics movement of the earth properties of stars life cycle of stars solar system and its planets types of galaxies galaxies

  1. 109 Earth diameters

  2. 109 Mars diameters

  3. 109 Venus diameters

  4. 109 Jupiter diameters

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Correct Option: A
Explanation:

The diameter of the Sun is 1.3914 million km.

Which is equal to 109 Earths diameter.

The dark areas on the sun produced by the most intense magnetic helds are called.

physics movement of the earth properties of stars life cycle of stars solar system and its planets types of galaxies galaxies

  1. Plages

  2. Sun spots

  3. Sundog

  4. Prominences

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Correct Option: B
Explanation:

The dark areas on sun produced by most intense magnetic helds are called sun spots.

The following is (are) true about Sun.

physics movement of the earth properties of stars life cycle of stars solar system and its planets types of galaxies galaxies

  1. It is made up of gases

  2. It has its own heat and light

  3. Sun is a star

  4. All of the above

Show answer
Correct Option: D
Explanation:

The sun is a big ball of gas and plasma. Most of the gas 91 percent is hydrogen. It is converted into energy in the sun's core. The energy moves outward through the interior layers, into the sun's atmosphere, and is released into the solar system as heat and light.

How much part of Earth is covered by land? 

physics movement of the earth properties of stars life cycle of stars solar system and its planets types of galaxies galaxies

  1. 26%

  2. 27%

  3. 28%

  4. 29%

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Correct Option: D
Explanation:

29% of Earth is covered by land. 

71% of the earth's surface is covered with water. 
And most of it is covered by oceans.

Dark patches present in the photosphere of the sun are called

physics movement of the earth properties of stars life cycle of stars solar system and its planets types of galaxies galaxies

  1. sun spots

  2. prominences

  3. rings

  4. fluorescence

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Correct Option: A
Explanation:

Sunspots are temporary phenomena on the suns photosphere that appear as spots darker than the surrounding areas.

Dark irregular patches seen on the surface of the sun are called ___________.

physics movement of the earth properties of stars life cycle of stars solar system and its planets types of galaxies galaxies

  1. sun spots

  2. solar prominences

  3. rings

  4. solar flares

Show answer
Correct Option: A
Explanation:

Ans: Sun spots